Sports device

ABSTRACT

A sports device. The sports device includes a stem having a handle and a blade which is attached to the stem on either side of the handle may be used for operating gentle yet strenuous water sports

BACKGROUND OF THE DISCLOSURE

This disclosure relates generally to the field of sporting devices andmore specifically to sporting devices for water sports.

A conventional sporting device has, for example, oars or paddles formoving canoe, boat or the like in water. For this purpose, oars andpaddles have a long, straight stem, at one end of which there isattached a flat component and at the other end there is a handle.

When rowing, the stem between handle and rudder blade is movablyattached to the boat, so that when pulling the handle towards the body,the rudder blade is moved by the water away from the body. The athleteor competitor (and boat) thus moves. A paddle also has a long stem, atthe end of which a blade is mounted and which has a handle on the end ofthe paddle located on stem remote from the blade.

During activity paddles are not attached to the boat. The athlete pullsthe blade backwards through the water so that he moves forward. A paddlewith a blade attached to each end of the stem also exists. In bothrowing and paddling, the blade used to move through the water isattached to one end of the stem while the handle is at the other end orbetween two blades.

A water sports device, in which the blades are mounted in each caseafter the handles on the stem, is described in DE 36 28 637 A1. Leverageis then used to move.

It is within the aforementioned context that a need for the presentdisclosure has arisen. Thus, there is a need to address one or more ofthe foregoing disadvantages of conventional systems and methods, and thepresent disclosure meets this need.

BRIEF SUMMARY OF THE DISCLOSURE

Various aspects of a sports device for water sports can be found inexemplary embodiments of the present disclosure.

The sports device includes a stem; two mounts mounted on the stem; ahandle; and a blade attached to the stem and the handle. The handle islocated between the two mounts on the stem, where the two mounts attachthe stem to the blade. In a further aspect, the sports device includesat least a first sports device and a second sports device connected by aconnector such as a connecting stem.

A further understanding of the nature and advantages of the presentdisclosure herein may be realized by reference to the remaining portionsof the specification and the attached drawings. Further features andadvantages of the present disclosure, as well as the structure andoperation of various embodiments of the present disclosure, aredescribed in detail below with respect to the accompanying drawings. Inthe drawings, the same reference numbers indicate identical orfunctionally similar elements.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically shows a sports device according to the disclosurewith a single blade.

FIG. 2 schematically shows the sports device according to the disclosurewith a connecting stem, by which a second sports device can be firmlyconnected to the first sports device.

FIG. 3 schematically shows a sports device according to the disclosurewith two blades, which are firmly connected to each other via aconnecting piece.

FIG. 4 shows a sports device according to the disclosure seen from theside.

DETAILED DESCRIPTION OF THE DISCLOSURE

Reference will now be made in detail to the embodiments of thedisclosure, examples of which are illustrated in the accompanyingdrawings. While the disclosure will be described in conjunction with theone embodiments, it will be understood that they are not intended tolimit the disclosure to these embodiments. On the contrary, thedisclosure is intended to cover alternatives, modifications andequivalents, which may be included within the spirit and scope of thedisclosure as defined by the appended claims. Furthermore, in thefollowing detailed description of the present disclosure, numerousspecific details are set forth to provide a thorough understanding ofthe present disclosure. However, it will be obvious to one of ordinaryskill in the art that the present disclosure may be practiced withoutthese specific details. In other instances, well-known methods,procedures, components, and circuits have not been described in detailas to not unnecessarily obscure aspects of the present disclosure.

In one embodiment, as a blade in the context of the present disclosureis referred to as a component, with a suitable training of themusculature force against resistance can be pulled through the water.For this purpose, it usually has a cd value of between 1.0 and 1.5,preferably between 1.15 and 1.4. Blades which are completely flattowards the direction of motion (cd value of about 1.0-1.1) aresuitable. However, more suitable blades have an area that has an openspace against the direction of movement. An example of such a blade isan open hemisphere or half shell against the direction of movement. Ifsuch a blade is pulled through the water with the open side, it feelsmore stable.

Preferred are blades with a surface which has different angles ofinclination with respect to the direction of movement through the waterover its length and width. For example, blades formed like half musselshells have such a shape. In order for the blade to produce sufficientwater resistance, a water-impermeable or sufficiently large,non-perforated surface is preferred. A water resistance will beconsidered as sufficient, if the sportsman has to make a substantialeffort to move the sports device perpendicular to the handle through thewater.

The cd value of the blade can by various constructive measures bebrought into the range in which it is useful for the disclosure. One ofthese factors is the work angle against the direction of movement. Thiscan be influenced by the attachment of the handle and the angle of thestem to the blade. The work angle according to the disclosure is between75 and 90 angular degrees, preferably between 85 and 90 angular degrees.Another factor is the surface area of the blade facing the direction ofmovement.

On one or more sides, it may have an angle greater than 80 angulardegrees, preferably between 85 and 90 angular degrees, towards to thedirection of movement in the water. The more one works with pressureagainst the water, you would think, the sports device would move fasterthrough the water. That's not so! Only a small increase in speed isachieved, whereas the force be applied increases disproportionately. Inthis way, the same sports device is suitable for training by bothstronger and weaker persons without constructive changes, or the samemovement pattern can be applied with much or little force.

The components of the blade used to generate the water resistance arepreferably formed from a lightweight material. It may be a uniformmaterial, such as plastic, but also a composite material, such asreinforced plastic or carbon. Polypropylene is the preferred materialfor reasons of cost and flexibility, but this does not mean that othermaterials such as fiberglass or even carbon for higher quality blades(or the whole sports device) are excluded.

The blade preferably has a basically uniform wall thickness. The wallthickness of the blade according to the disclosure is usually for themajority of it is surface between 1.2 mm and 1.5 mm, depending upon thematerial. The preferred thickness of the blade is in the surface is 1.3mm, and in the area of the mounts is 5 mm. The flexibility of the bladecan also be adjusted over the thickness even at different positions ofthe blade. It was found that it is pleasant for the sportsman for usingthe disclosure in water, if the blade is not completely rigid. Adisplacement at the edge by up to 10 cm, preferably between 1.2 cm and1.5 cm, when moving through the water has proved to be joint-friendly,even under extremely high load, since the force development can begentle. As a material, plastic has proven to be particularly suitablefor the flat portion of the blade, which contributes the most to waterresistance.

In addition to the cd value, the size of the cross-sectional areathrough which the water resistance is generated also has an influence onthe force which the athlete has to apply in order to move the sportsdevice through the water. In this context, this area does not mean thearea of the surface of the blade but the area of the projection of theblade onto the area perpendicular to the direction of movement.

Thus, for the example of a hemispherical blade moving through the waterwith the open side, this is not the (half) spherical inside surface butthe area of the cross section through the (imaginary) sphere. The waterresistance effective area of the blade may thus have an area of between100 and 2000 cm², whereby smaller area sports devices require lesspower. This is better for beginners or children, while larger areadevice is for training experienced people with stronger musculaturebetter suited. For adults with average strength, an area of between 600and 1000 cm² is appropriate.

The blade is attached to the stem with two mounts. This stem has ahandle through which the sports device can be gripped and moved throughthe water.

The stem extends between the two mounts of the blade. It can thereforehave any form that ensures this function. In its simplest form, it maytherefore be a handle with a round cross-section. Preferably, the stemis tubular. The stem is so long that it can be held on the one hand bythe mounts, and on the other hand that it can pick up or form thehandle. The minimum length is therefore determined by the distance ofthe mounts from each other.

This, in turn, is dictated by the fact that the handle is between themounts and is thus dictated by the width of the athlete's hand. Themaximum length is given by the dimensions of the blade. The stem shouldnot or not substantially protrude beyond the cross-sectional area of theblade, because otherwise this could lead to injury from the protrudingpart. The stem therefore usually has a length of between 20 cm and 30cm; preferred are 25 cm. The diameter of the stem is preferably between15 mm and 40 mm, more preferably between 20 mm and 30 mm. If you use atube with a diameter of 24 mm, you can use a standard handle grip of abicycle as a handle.

The stem is made of a material that is strong enough to hold the handlein a fixed position towards the blade. Suitable for this purpose aremetals or plastics. If the sports device is to be particularly light,light metals have proved to be preferred. In addition, it must notcorrode.

Aluminum is particularly preferred because it is relatively corrosionresistant in water and yet very light. If the sports device has to beparticularly inexpensive, the stem can also be made of plastic, inparticular of the plastic, from which the blade is made. This alsorelieves the production, since then the sports device can be produced inan injection molding step.

The handle may be part of the stem or a component attached to the stem,which largely or completely encompasses the stem, so that the stem canbe gripped largely or completely by hand. The size of the hand thereforeessentially determines the circumference of the handle. Thecircumference is thus preferably between 8 cm and 20 cm.

In the simplest form of the disclosure, a part of the stem itself isused as a handle. This is useful if the sports device should beinexpensive. In a first finish, the stem is a long component with around cross-section, which is so large that it can be easily gripped andheld by hand. The diameter is then between 2 cm and 6 cm, preferablybetween 2.5 cm and 4 cm, in which a small diameter for smaller hands,like hands from children, is advantageous. A separately mounted handleis then no longer necessary because part of the stem serves as a handle.However, this has the disadvantage that it is more difficult to graspand hold the handle without the hand slipping on the stem during theexercises.

Another embodiment is characterized in that the stem and handle are madeof the same material, and that the handle is formed from the material ofthe stem, to ensure better tangibility of the handle. This embodiment isparticularly easy to manufacture if the sports device is made ofplastic, since the device can be then produced by injection molding. Inthis case, the plastic can be ergonomically shaped in the region of thehandle, so that it is designed to be handy.

In a more comfortable or better for training suitable form of the handleon the stem is formed separately. So, it is independent of the shape ofthe stem. The shape is designed so that you can hold it well with yourhand. This can have approximately the shape and size of a conventionalbicycle handle's handle made of soft plastic. So that the hand cannotslip in the direction of the mounts, extensions can be provided on thesides of the handle. In one embodiment, the handle is a cylindricalpiece of rubber, which is pushed in the installation of the stem made ofaluminum tube to the desired position.

The material of the handle is chosen depending on the desiredconfiguration. Particularly suitable are soft plastics that are easy towork with, and which are skin-friendly and safe to the touch.

The handle may be located somewhere between the mounts. To ensure bettertraining performance, the handle is fixed on the stem, so that thesports device is always firmly gripped in the same point. This ispreferably chosen so that the force can be distributed by the hand asevenly as possible on the sports device, so that the effective surfaceagainst the water resistance is as perpendicular to the direction ofmovement of the sports device. This point is preferably located in thesymmetrically shaped blade nearer the thumb, where is the front third ofthe stem, provided that the mounts are located respectively at the outerends of the blade. If the water resistance on one side of the blade isincreased, the handle will usefully continue to be shifted to this side.This serves a uniformly training.

The mounts connect the blade to the stem. This connection can bepermanent, but also temporary. During training, a secure attachment ofthe blade to the stem should be ensured. If the sports device is to bedismantled, mounts can be selected in which the stem or the blade can beremoved from the mount, or in which the mounts can be disengage. Anembodiment with permanent connection results when the sports device isto be made of a single material, such as plastic, by injection molding.In multi-step manufacturing processes, the handle may be permanentlyattached to the blade or stem and connected to the stem or blade tocomplete or provide the sports device. The connection can be done byconventional methods. For this purpose, pushing, screwing, clamping,engaging or a combination of one or more of these methods are suitable.

In a first embodiment, the mounts are located on the side of the bladeor the sports device on which the stem is located and which is on theside of the direction of movement of the device. Preferably, the area ofthe blade encloses the space around the handle at between 5% and 75%.

The mounts have an inclusion for the stem, in which it is then securedby screws. The mounts are attached to the blade so far from each otherthat on the stem there is still place for the handle.

In another embodiment, both mounts can be in the form of openings in theblade.

In a preferred embodiment of the arrangements of the handles and thestem on the blade, the first handle is part of the blade on the side ofthe sports device which is on the side of the direction of movement. Forthis purpose, a component is provided at the one end of the blade, whichprojects in the direction of movement on the stem and has a receptaclefor the stem, for example, a round opening with the outer shape of thestem.

The stem is screwed into the receptacle on the one hand and clamped onthe other side. The second mount is formed by a hole in the blade intowhich the stem is received, for example a round hole with the outershape of the stem extending from the inside of the blade to the outsidethrough which the stem can extends from the inside to the outside.Fasteners, such as screws or clamps, may then be provided on the insideor outside of the blade. Again, the two mounts are so far away from eachother on the blade, that there is place between them for the stem withthe handle.

The mounts and stem also serve to hold the handle so far away from theblade that the hand does not come into direct contact with the bladewhen grasping the sports device on the handle, and especially during thepractices. This is guaranteed if the distance of the handle from theblade is more than 5 cm. Advantageously, the distance is between 5.5 and11 cm.

In a particularly preferred embodiment of the disclosure, the blade isformed from a strongly rounded, rectangular, curved plastic plate with awidth of 20 cm and a length of about 30 cm, but not more than 50 cm. Theedges of the plate are bent in the direction of the handle, so thatforms a hollow interior, wherein the edge on one side protrudes beyondthe stem, so that the stem protrudes through an opening in the platefrom the interior to the outside.

The sports device according to the disclosure can be produced byconventional methods. If the sports device is entirely made of plastic,it can be injection molded from a thermoplastic such as PP and PE. Theblade including mounts is preferably made by injection molding of PP. Ifindividual components are to be made of other plastics, for examplesofter materials, such as the handle, the sports device can be producedin a two-component injection molding process. If the sports device ismade of different materials, the individual components can bemanufactured separately and then they can be assembled. This is the casewhen individual components, such as the stem, should be made of metals,others made of plastic.

The sports device according to the disclosure can be used to do watersports. This includes sport, which is operated in the water in oneplace. For this purpose, the athlete goes into the water, standing orfree to move, grips the sports device with one hand firmly by the handleand moves the sports device through the water. The movement can be bothhorizontal and vertical. The exertion and thus the training effect canbe adjusted by the sports device is gripped by the handle, so thatdifferent work angles of the blade towards the direction of movementarise.

The effort is highest when the cd value reaches the highest value. Thisis usually the case when the effective area of the blade with respect toa particular direction of movement is greatest for the water resistance.You can do the same practices with a lot or with little effort. Anexample of a practice with the sports device according to the disclosureis the gripping of the handle with the arm extended so that the interiorof the blade points towards the athlete. The sports device is movedtowards the athlete by tensing the arm muscles and then returned to thestarting position. Another practice is gripping the sports device by thehand with the arm outstretched so that the interior of the sports devicefaces down.

The sports device is moved towards with the arm extended and returned tothe starting position. In contrast to many other sports device (such aselastic bands), the muscles are not only trained in bending the armmuscles, but also during stretching of the arm muscles during the returnto the starting position. The movement in the water also ensures thatbalancing movements throughout the body are required so that the bodyremains in place and does not fall forward or backward. Thus, thestabilization muscles of the spine are trained. The sports deviceaccording to the disclosure therefore ensures a gentle load on a varietyof muscle groups by a gentle force development.

However, the sports device according to the disclosure can also be usedfor locomotion through the water. One way to do this is to swim in thefamiliar crawl style. For this purpose, each hand takes one of thesports devices according to the disclosure.

Alternately, a sports device is guided through the air from back tofront, while the other is pulled from front to back through the water.The water resistance generated by the blade is translated forward in amovement of the athlete. The use of the sports device according into thedisclosure for swimming is not quite as easy as it seems, but skilledswimmers can learn the new techniques quickly.

The blade according of the disclosure preferably has a curved, oval,oblong shape. The said blade describes the shape of a shovel, which hasa central handle in the longitudinal direction. The sports deviceaccording to the disclosure generally has a length of about 30 cm, awidth of about 20 cm and at the lowest point a depth of about 12 cm to15 cm.

The sports device according to the disclosure may contain othercomponents. This can be a component that can be used to connect toanother sports device. If the other sports device is another sportsdevice according to the disclosure, the component is preferably aconnector, for example a connecting stem, which can be attached to thesecond copy of the sports device. For attachment of this connecting stemmounts are available either on the connecting stem or on one or bothsports devices. Because of the rapid solubility clamping brackets arepreferred. In one embodiment, one of the mounts of each of the twosports devices is used to secure the stem to the blade and it is alsoused to secure the connecting stem.

The shape of the connector or connecting stem is chosen so that the twoconnected sports devices can be gripped in each case with one hand oneach handle and that it firmly connects the two individual sportsdevices with each other, preferably via their stems with each other. Forthis purpose, the connecting stem is so long that the two sports deviceshave a sufficient distance for training. In a more comfortable version,the length of the connecting stem is variable, so that differentpractices can be trained. In general, the connecting stem is so longthat the connecting stem can be completely sunk in the sports deviceaccording to the disclosure, so that nothing protrudes.

This avoids the risk of injury. The distance between the handle of thetwo sports devices is between 40 cm and 1.2 m, preferably between 50 cmand 1 m. An advantageous embodiment is obtained when the connecting stemhas an outer shape which can be received in the interior of the stem ofthe first sports device so that it can be stored therein. For thispurpose, the stem of the first sports device is preferably a hollow tubewith a first inner diameter, and the connecting stem is a tube with anouter diameter which is slightly smaller than the inner diameter of thestem of the first sports device. The tubes are preferably straight.

One embodiment of the disclosure includes a set containing two sportsdevices according to the disclosure. With this both arms can be trainedat the same time, if ever a sports device with the right and the lefthand is grasped and moved in the water. If these sports devices are notconnected to each other, practices can be performed in which the twohands make movements in different directions. For example, the firstsports device can be moved downwards while the second is moved upwards.

This set may further include a connecting stem for attaching the twosports devices together. It may be contained loose in the set, but alsobe attached to one of the two sports devices. This set may contain theindividual sports devices in a separate form as a set, but theindividual sports devices can already be connected to each other via theconnector.

Another embodiment is a sports device containing two of theabove-described sports devices according to the disclosure, each with ablade which are fixedly connected to each other by a connector or aconnecting stem. With this sports device both arms can be trained. Forthis purpose, each hand grips one of the two handles and moves thesports device substantially perpendicular to the handles. If thedistance of the handles, for example, by different lengths of connectingstems, is changed, different muscle groups can be trained.

Another embodiment of the disclosure is the use of the device accordingto the disclosure for doing water sports using the hands. An example ofwater sports is swimming. Water sports are preferred by moving thesports device either alternately up and down or back and forth to thebody.

FIG. 1 schematically shows a first embodiment of the sports device (10)according to the disclosure.

It has a blade (11) which has a thumbs side (18) and a small fingersside (19). On its thumbs side (18), the blade is fastened with a firstmount (14) to a stem (12) in the form of a tube. The mount (14) is aclamp bracket that has a receiving opening that surrounds the tube rightdown to a slot. In the embodiment shown, the stem (12) protrudes throughthe blade (11), the mount (14) comprises the receiving opening for thestem (12). The mount extends from the handle as seen on the outside ofthe blade. By tightening the set screw (15) the slot is demagnified andthe circumference of the opening reduced, whereby the mount clamps thetube.

On its small fingers side (19) the blade is attached to the stem (12) bythe second mount (16) is attached to the stem (12). The mount (16)provides a sufficient distance between the blade from the stem and alsohas a receiving opening which surrounds the tube right down to a slot.On the side facing away from the blade (11) of the stem, the mount (16)is provided with a set screw (17). By tightening the set screw (17), theslot is demagnified and the circumference of the opening reduced,whereby the tube in the mount (16) is clamped.

Between the mounts (14, 16), the stem has the handle (13). It is markedin the drawing for better visibility with circumferential rills. Itencloses the tube and serves for gripping the sports device (10) by handand for the holding during sports exercises. In this case, the thumb ison the right side of the handle when grasping with the left hand (seenby the viewer in FIG. 1), the thumbs side (20) of the handle, the littlefinger to the left, in the vicinity of the small fingers side (21) ofthe handle. The handle (12) is located on the inside (25) of the blade.Of course, you can use the grip method diametrically reversed.

FIG. 2 schematically shows the sports device according to the disclosurewith a connecting stem (22).

The meanings of the components correspond to the reference numerals withthe designations A, the reference numerals in FIG. 1 without designationA. The connecting stem (22) is formed as an extension of the tube, whichhas a slightly smaller outer diameter than the tube which forms the stem(12A). Therefore, the connecting stem (22) can be inserted into the tubeand can be countersunk therein. Further, the connecting stem (22) isclamped by the mount (16) in the stem (12), so that it cannot becompletely pulled out of the stem. The mount (14A) is an opening in theblade, the attachment is made by a screw on the outside (26) of theblade.

FIG. 3 shows schematically the sports device according to the disclosurewith a connecting stem (22), in which it is firmly connected to afurther copy of the sports device according to the disclosure via theconnecting stem.

The reference numerals of the second sports device have the additionaldesignation B, but otherwise they correspond to the reference numeralsof the first sports device. The second sports device is also fixedlyconnected to the connecting stem (22) via one of the mounts (16A) in thefirst sports device corresponding mount (16B) of the second sportsdevice. As a result, the sports devices are mirror-imaged connected toeach other via the connecting stem. This makes it possible to grip thehandle of the first sports device with the left hand (23) and the handleof the second sports device with the right hand (24). The thumbs sidesof the hands preferred show towards each other. For another practice,the grip can be performed diametrically opposite.

FIG. 4 from a side view shows a sports device according to thedisclosure as manufactured and used in the examples. You can see theblade (11), the extension stem (22) and the handle (13).

LIST WITH REFERENCE SIGNS

10 Sports device

11 Blade

12 Stem

13 Handle

14 First mount

15 First set screw

16 Second mount

17 Second set screw

18 Thumbs side of the blade

19 small fingers side of the blade

20 Thumbs side of the handle

21 Small fingers side of the handle

22 Connecting stem

23 Left hand

24 Right hand

25 Inside of the blade

26 Outside of the blade

EXAMPLES Example 1 Manufacture of a Sports Device with a Single Blade

The curved blade is made of polypropylene, the shape as shown in FIG. 4.It is manufactured by injection molding. The two mounts are also made ofpolypropylene and are attached to the blade during injection molding.The mount, which is closer to the flattened part of the blade, has acircular opening with a clear diameter of 2.5 cm and a slot with acircumference of 0.4 mm clearance, which is used to clamp the stem inthe opening, which can be downsized by means of a screw. The secondmount is formed by a hole on the steeper side of the blade. The openingis also 2.5 cm wide and has on the outside of the blade a clampingdevice of the same type as in the other mount.

A straight piece of bicycle handle with an outer diameter of 2.4 cm isinserted through the second mount in the interior of the blade. Then agummed bicycle handles whose outer end has been cut off so that the tubecan escape from the handle, is pushed onto the bicycle handle until thetube protrudes from the handle, and the bicycle handle is pushed furtherinto the blade until it can be inserted in the first mount. There it isclamped with a screw. Thereafter, the slot of the second mount is closedby tightening the screw and thus the stem is fixed in the mounts.Thereafter, the handle is brought to its final position.

Example 2 Swimming with the Sports Device According to the Disclosurewith a Blade

Breaststroke

When breast stroking almost all muscles are in use. For this you holdthe sports device in front of you and pull it in the usual way in acircular motion backwards down away. Then you do with the wrists anupward rotation and push the sports device with little to no resistanceback to the front. The leg movement is performed normally.

Crawl

In crawling, almost all muscles are also in use. The technique is alsoeasy to learn by changing a few things in the movement sequences. Youplunge one of the sports devices in front of you and pull it back down.Then you do with the wrists an inward rotation, thus reducing theresistance. While the first hand leaves the water at the hip to pushforward, the other hand plunges into the water and does the samemovement as previously described. The leg movement is performednormally.

Backstroke

During backstroking, almost all muscles are in use again. In thetechnique you lie on your back and stretch your arms sideways in thewater. Then you pull the blades to your thighs. By turning the wrists,there is the resistance of the blades reduced and stretched out again atchest level. Then the movement starts from the beginning. The legmovement is performed as in breast stroking.

Back Crawl

When back crawling almost all muscles are in use again. You lie on yourback and extend one arm to the back. Then you draw the one blade withhalf a turn in a half curve to the buttocks. When one hand reaches it,you plunge the other hand in the water behind you. The hand that madethe first strike comes up from the water and pulls back in the usualway. Then the movement starts from the beginning. The leg movement isperformed as in crawling.

While the above is a complete description of exemplary specificembodiments of the disclosure, additional embodiments are also possible.Thus, the above description should not be taken as limiting the scope ofthe disclosure, which is defined by the appended claims along with theirfull scope of equivalents.

I claim:
 1. A sports device for water sports, the sports devicecomprising, a stem; a plurality of mounts mounted on the stem; a handle;a blade attached to the stem and the handle, wherein the handle islocated between the plurality of mounts on the stem, the plurality ofmounts attaching the stem to the blade.
 2. The sporting device accordingto claim 1, wherein the blade on a side facing the handle has anon-perforated surface of between 200 and 2000 cm².
 3. The sportingdevice of claim 1 having an extension stem that is insertable within thestem and is extendable from the stem.
 4. The sporting device of claim 1,further comprising a connecting piece, wherein the sporting device is afirst sporting device and the connecting piece connects the firstsporting device to a second sporting device
 5. A set of sports devicesfor water sports, the sports device comprising: a first sports devicehaving a first stem; a first plurality of mounts mounted on the firststem; a first handle; a first blade attached to the first stem and thefirst handle, wherein the first handle is located between the firstplurality of mounts on the first stem, the first plurality of mountsattaching the first stem to the first blade; and a second sports devicea second stem; a second plurality of mounts mounted on the second stem;a second handle; a second blade attached to the second stem and thesecond handle, wherein the second handle is located between the secondplurality of mounts on the second stem, the second plurality of mountsattaching the second stem to the second blade.
 6. The set of sportsdevices of claim 5 further including a first and a second connectingstem are integrated in each one of the first and second sports devices.7. A method of using the sports device of claim 1 using the hands. 8.The method of claim 7 wherein the water sports is for full bodytraining.
 9. A sports device for playing sports in water, comprising: astem; a handle adjacent to the stem, and a blade that is disposed overboth the stem and the handle.
 10. The sports device of claim 9 whereinthe stem is an integrated connecting stem.
 11. The sports device ofclaim 9 further comprising a plurality of mounts attaching the blade tothe stem.
 12. The sports device of claim 11 wherein the handle islocated between the plurality of mounts.
 13. The sports device of claim12 wherein the blade has a thumbs side and a small fingers side.
 14. Thesports device of claim 13 wherein the sports device includes a firstsports device and a second sports device, each with a blade that isfixedly connected to each other by a connector or a connecting stem. 15.The sports device of 14 wherein the first sports device is graspable bya user's left hand while the second sports device is simultaneouslygraspable by the user's right hand.